Opto 22

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KB48279
Data quality may appear to change states frequently in OptoDisplay and ioDisplay
Revision:  4.0
Published:  4/25/2006
Applies To
Firmware for:
SNAP-UP1-ADS
SNAP-UP1-M64
SNAP-UP1-D64
SNAP-LCE
M4RTU
G4LC32
G4LC32SX
M4
SNAP-LCSX-PLUS
SNAP-LCSX
SNAP-LCM4
G4LC32ISA
G4LC32ISA-LT
Versions
Problem was discovered in version:  
ioControl controller firmware R6.1a
Problem was discovered in version:  
OptoControl controller firmware R4.1a
Problem is fixed in version:  
ioControl controller firmware R7.0a

SYMPTOMS

Data quality (between good and bad states) may appear to change erratically in ioDisplay or OptoDisplay.

CAUSE

Requesting an ioControl or OptoControl 64-bit integer tag or 64-bit integer table element by ioDisplay or OptoDisplay, may eventually cause a controller “stack full” error.

RESOLUTION

Opto 22 has corrected this problem.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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